Brazil has supplied collectors with wonderful mineral specimens for decades.
The gem material such as tourmaline, aquamarines, and topaz receive most of the
acclaim, however there are a great diversity of Brazilian minerals worth noting.
Because we purchase older collections we often have fine examples of Brazilian
minerals that are not common in today's contemporary mineral market.

OKO-466 Tourmaline Brazil.
This singly terminated crystal measures 1.4 x 1.1 x .7 cm. There is no
damage and the crystal has a nice luster and attractive green/ blue color.
The fact that it is hollow is rather interesting! Mounted in a perky box.
$30

OKO-557

OKO-557 Quartz (var. Citrine)
Brazil. Harold Dibble collection. The location was not specific on
this one but natural citrine is rare so it is likely
Resplendor,
Minas Gerais. This is an attractive point measuring 14.4 x 6 x 4.5 cm.
It is transparent with the majority of its interior being gem quality.
Minor chipping on one edge of termination as seen in second image.
$250

OKM-992

OKM-992 Brazilianite Mendes Pimentel,
Minas Gerais, Brazil. Ex. Harold L. Dibble collection. This is not a
photogenic piece but in hand is very aesthetic. The main crystal is 2.7
cm, free of damage (one edge extends to edge of specimen and has breakage from
removal), and is gem grade. The surrounding crystals are partials and have
edge contacts. Exceptional luster and color. $120

OKO-520

OKO-520 Quartz Minas Gerais, Brazil.
Ex. Harold L. Dibble collection. This is a smoky colored, transparent,
slightly skeletal specimen that measures 6 x 3.5 x 3 cm. There is a
notable chip on back, or base (depending on how it is displayed) of specimen
(sorry, it is not shown in the images). Other views are damage free.
Good luster. $35

OKO-536

Backside

OKO-536 Quartz, Feldspar, Muscovite
Minas Gerais, Brazil. Ex. Harold L. Dibble collection. This is a
large, complex specimen that measures 16 x 12.5 x 5 cm. Multiple
terminations on this fully healed floater. The piece is in excellent
condition with there being only one small rub on one of the many terminations.
Some smaller faces show minor skeletal development. The smoky coloration
is selective and isolated to only some areas of the crystals... it is almost
like some one poured the coloration in and it just drifted around to some
regions of the piece. A very interesting, aesthetic and desirable piece.
$600

OKM-212 Calcite Irai, Rio
Grande do Sul, Brazil. Ex. Harold L. Dibble collection. This is a
small, star burst shaped cluster of crystals that came from within an amethyst
cathedral. It measures 5 x 4.1 x 3 cm. It is a floater (no points of
contact) and is damage free. It is very uncommon to see these outside of a
amethyst geode and as floaters they are almost non-existent. $225

OKO-412

OKO-412
Tourmaline Minas Gerais, Brazil. Ex. Paul and Dawne Dunning collection.
This crystal is capped by a smaller, doubly terminated crystal creating a nice
look. The entire specimen measures 1.5 x 1.5 x 1.1 cm. It has no damage and is
an attractive green color. The crystals a translucent and nicely formed. $50

OKO-760 Quartz (variety amethyst and smoky)
Minas Gerais, Brazil. Ex. Harold L. Dibble collection. 13 x 8.8 x
8.5 cm. Smoky quartz capped by thickly layered amethyst that is slightly
skeletal in areas. The amethyst is gemmy and so saturated that it is
difficult to photograph easily. Minor clay inclusions along skeletal
planes. Minor damage to tip and very minor rubs in a couple other spots.
Sits great for display and views well from any direction. A fine piece
even with the minor condition issues. $400

OKO-759

OKO-759 Quartz Minas
Gerais, Brazil. Ex. Harold L. Dibble collection. A large
doubly terminated, smoky crystal dominates this piece. There are a couple
tiny rider crystals as well but, the really odd thing is the matrix. It is
a mix of green and yellow brecciated material. The yellow actually looks
like brazilianite but I am unsure as I have not seen a piece quite like this
before. The specimen measures 12.4 x 8 x 7 cm. There are no contacts
nor damage. An especially fine specimen. $650

OKO-757

OKO-757 Quartz Minas Gerais,
Brazil. Ex. Harold L. Dibble collection. A big parallel growth
section of what was probably a huge crystal. Main body is free of damage
(the white areas are simply white colored quartz) and the edges are contacts.
Discoloration of front of big crystal seen in the second image was from a
sticker I failed to notice when taking the pictures. It is now removed.
15.7 x 15.4 x 6 cm. $150

OKM-169 Uvite on Quartz
Bramado Babia, Brazil. Ex. Harold L. Dibble. 4.8 x 3 x 1.6 cm
specimen with a 2 cm green, transparent to translucent uvite embedded in the
side of a clear quartz crystal. No damage but the back shows regrowth to
the uvite so it appears incomplete in side or back view. Front and other
side view beautifully. The quartz show secondary growth on a couple of
faces and some tiny quartz attachments. A very aesthetic miniature that is
mounted on an acrylic base. Very good example of this older Brazilian
material. $275

OKO-183
Beryl (variety Emerald) Minas Gerais, Brazil. Ex. Charles Daniels
collection. A nice, translucent, medium green floater crystal. It is damage
free and crude in its form (but it is fully formed and double terminated). 2.3
x 1.7 x 1.1 cm. Tough to find a emerald in any condition at this price little
known one this nice with zero damage. $80

OKP-162 Tourmaline on Quartz
Brazil. Ex. Harold L. Dibble collection. The tourmaline on this
quartz crystal is a nice bluish green color and very translucent.
The tourmaline measures 11.2 cm and only has one termination (the other is
entirely broken off and it is the backside termination that is lower on the
specimen) while the entire specimen is approximately 20.5 x 11 x 11 cm.
The quartz is damage free and even the contact and base are healed. I've
made the damage to the tourmaline clearly visible. Front view is nice but
the damage is visible from the back and sides. Small tourmalines in base
of the specimen. Sits nicely and displays well when positioned as seen in
the first image or turned slightly more. $600

OKO-762

OKO-762 Quartz (variety Amethyst)
Irai, Rio Grande de Sol, Brazil. Ex. Harold L. Dibble collection.
This is a fine example of this popular material. It measures 17.5 x 14 x 3
cm. It served as the cover specimen on the first draft of Harold's book on
quartz. It is much better in hand with good luster an nice, complete
form.. There is no damage and the only contact is on a small part of the
flange seen on the lower left in the first image. A small part of the
flange was repaired (so well I can not tell where even with close scrutiny).
The backside is also free of any damage or distractions. $750

OKO-728 Quartz and Calcite
Irai, Rio Grande du Sul, Brazil. Ex. Harold L. Dibble collection. A
purple, pink, green, gray mix of colors compose this large plate of quartz
stalactites. 23.5 x 21 x 9 cm. There are a couple calcites on the
backside edge which don't show in any of my photographs. About a dozen
stalactites are incomplete but, this appears to have been done in-situe and I
don't think it is damage from human hands. The best stalactites are well
formed and terminated by bulbous clusters of colored quartz. A fine, showy
piece that will display well. $450

OKO-152

Back

OKO-152
Uvite on Magnesite Brumado, Bahia, Brazil. A fine cluster with clear to
slightly green, totally transparent, ascicular tourmalines all over these white
(often with red inclusions) rhombohedral magnesite crystals. 3.3 x 3.2 x 2.2 cm
piece that appears to be a floater. No apparent damage, views great from any
side. Mounted in a perky box. Very nice. $50

OKO-733 Beryl
Criminoso, Minas Gerais, Brazil. Ex. Harold L. Dibble collection. A
large gem crystal of an unusual light green color. It measures 5.7 x 3.6 x
3.5 cm. One termination steeply inclined (looks to me like a healed
surface vs. an actual set of faces however it also could be an etched
termination. In either case it is complete, natural and damage free.
There is one good side on the piece with the other sides showing chips on the
striated prism faces. One large contact at base of backside of piece.
It certainly has issues but is still a major specimen. There are at least
a couple of hollow tubes running almost the entire length of the crystal.
They are plugged at the termination by a light brown mineralization or clay.
$1,500

OKO-734

OKO-734 Tourmaline on Muscovite
Brazil. Ex. Harold L. Dibble collection. This is
likely from the Pederneria Mine. Many multicolored tourmalines to over 6
cm each cover the surface of this plate of muscovite. The plate is large
(16 x 12.4 x 5 cm), and in the shape of a shallow dome. Crystals are
everywhere but most are incomplete or broken. The majority are blues and
pinks, often with pinks having blue rims. The largest tourmaline is quite
nice; however, there is distracting mica overgrowths making it somewhat
camouflaged. $300 takes it.

OKO-736

FIGURED SPECIMEN

OKO-736 Quartz Boca Rica Mine,
Galileia, Minas Gerais, Brazil. Ex.
Harold L. Dibble collection.
FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz,
page 87 by Harold Dibble. A fine large scepter of smoky quartz.
Lots of skeletal growth on both the cap and stem of the crystal. It
measures 14.5 x 9.4 x 9 cm. There is some chipping and a little damage to
cap in one spot but it is not distracting and on back of piece (even though you
can view this piece from any direction nicely). Well developed clay
inclusions... not random, nice layers in between skeletal layers. Very
high luster, even for quartz. Base is well developed and even more
skeletal than the cap. Very little base contact. An excellent
specimen of aesthetic quartz. $1,500

OKO-737

FIGURED SPECIMEN

OKO-737 Quartz Minas Gerais,
Brazil. Ex. Harold L. Dibble
collection.
FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz,
page 18 by Harold Dibble. It is not hard to figure out why this fine
specimen was used in a book on quartz. It is large, clear, interesting in
form, average for luster, but so attractive in-hand that it really gets one's
attention. It measures 16. 5 x 4.4 x 4.1 cm and shows a strong Tessin
habit development. One of its two terminations has a micro rub (Wilber).
Light prism striations on some faces. A fine piece. $950

OKO-738

OKO-738 Quartz Minas
Gerais, Brazil. Ex. Harold L. Dibble Collection. Deep
smoky colored, transparent quartz point with no damage and high aesthetic
values. Great luster and form, rich color, gemmy except at base.
Termination has a large rainbow as seen in third image. $600

OKN-703

Front view

Back view

Back side with heavy tourmaline encrustation

Base with watermelon tourmalines

Top termination showing green and watermelon tourmalines

OKN-703 Tourmaline with Quartz
Minas Gerais, Brazil. Ex. Harold L. Dibble collection. One of his
finest specimens this huge crystal cluster measures in at an impressive 58 cm
long. It probably weights in at approximately 100 to 150 pounds as I can
just barely lift it waist high. The main quartz crystals are double
terminated and heavily encrusted by and included by large green tourmalines to
16.5 cm long and over 3 cm wide each. The base termination and what I
would call the top (top in the first two photos with myself) have very
attractive watermelon crystals that are among the largest crystals in the
quartz. The back side is more heavily coated with a thick aggregate of
tourmalines of all sizes. The tourmalines are for the most part
transparent with bigger ones being translucent. The green is quite dark by
very clearly GREEN, not black. It is likely that many more of the crystals
are watermelons (having pink cores and green rinds) but unless they are broke it
is difficult to tell with casual viewing. The luster on both the quartz
and the tourmalines is excellent. I just washed the specimen before the
photos were taken but the specimen IS DRY, not wet. The photos are
obviously not studio pics and this is all the photographic work I am willing to
put into this piece. It is simply too difficult to move around.

There are plenty of tourmalines that are not terminated but equally as many
are. The terminations are crude to very nice depending on the crystal.
The quartz is in excellent shape with far less damage than would be expected for
a specimen of this large a size. The top and bottom terminations each have
a small area with chipping... very minor. I will not ship this piece so it
is for pickup here or at a show I do. A reasonably close personal delivery
could possibly be arranged for a small fee. A dolly is required to move
this specimen and it is very difficult to move floor to floor (but is possible
with effort).

The piece is most suited as a large home decor or museum piece. When
properly lit and backlit it glows! Fantastic display piece.
$6,000

OKO-732

FIGURED SPECIMEN

OKO-732 Quartz Minas Gerais, Brazil.
Ex. Harold L. Dibble collection. This is a strange piece described in
Harold's book. It is composed of small stalactites of quartz. It
looks to me like there are thin tabular calcites capping some of the quartz
stacks. VERY strange. Not very aesthetic so $200 will find it a new
home. 19.1 x 12 x 6.1 cm. No damage. $200

OKN-976

The tiny back spot at top right of this and the next image has been removed.

Scew dislocation

OKN-976 Topaz with Screw Dislocation Virgem da Lapa,
Jequitinhonha Valley, Brazil. Ex. Harold L. Dibble collection. This
is a pleasing light to medium blue, natural topaz of very high quality.
The really unusual part is it obvious screw dislocation growth feature running
its entire length parallel to the "c" axis. More common in the beryl
family of minerals these are quite uncommon in topaz crystals. This one is
only a couple millimeters wide but is much more obvious than my one image
indicates. It can be seen very clearly through the largest of the five
non-etched faces. Take my word on this one..."you can't miss it"!

The luster on this fine specimen is exceptionally high showing no frosting or
abrasion. It is a damage free floater showing many surfaces etched to
different degrees. Some quite lightly and others heavily leaving behind
razor sharp edges. Internally all gem showing none of the typical veils or
internal fracturing. I only do point and shoot photography for these
listings and this is one of those specimens that deserves better. The
crystal views great from any side and sits perfectly for display without a base.
Only one small chip on backside. It is exquisite in hand and likely the finest specimen from Harold's collection.
7 x 6.6 x 5.5 cm overall. $8,500

OKN-975

OKN-975 Topaz Virgem da Lapa,
Jequitinhonha Valley, Brazil. Ex. Harold L. Dibble collection. This
is a pleasing medium blue, natural topaz of very high quality. The luster
is exceptionally high showing no frosting or abrasion. There is one
internal but shallow crack on one side that I've tried to show clearly in the
fourth image.
Internally very clean for this material... almost all gem. Great faces visible on all sides
less one (the back) which is a mix of contacts that are healed, etched surfaces
and a couple small chips near the base of the crystal. Extremely good
condition even on a micro level showing no minor dings, rubs or marks.
Great consistent color with no distractions from its high aesthetics. The
base is cleaved so the specimen sits great without any base. Only one
small chip on backside. 8.2 x
6.5 x 5 cm overall. $5,500

OKN-127 Quartz Coronel Murta,
Minas Gerais, Brazil. Ex. Harold L. Dibble collection.
FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz,
page 86, by Harold Dibble. A triangular shaped piece that is 18 cm on
edge. Crystallized on all sides. The largest, top crystal (the one
on left in forth pic) has a large bubble enhydro that moved within a 1 cm
opening. The bubble is approximately .3 cm. Numerous clay
inclusions. There is minor chipping on edges of piece and on one of the
numerous terminations so it isn't perfect... but it is really nice for a
specimen of this type. No distracting issues and completely crystallized
on back, as well as front. More impressive in-hand than I can portray in
the photographs. $950

OKN-128

OKN-128 Tourmaline on Quartz Cruzeiro, Minas
Gerais, Brazil. Ex. Harold L. Dibble collection. Dark green,
translucent, lustrous tourmalines all over a large quartz crystal. The
tourmalines are nicely formed, deeply striated, up to 7 cm in length but many
are not terminated. The quartz is poorly formed and milky in color.
The main spray of crystals in the center are nicely terminated. Sounds
like a train wreck but it is actually a desirable specimen and typical of
material from decades ago. 14 x 11.5 x 8 cm along edges. Over 17 cm
diagonally. Sawn flat base so it sits well showing off the tourmalines on
all sides and top (nothing decent on back of specimen). I think someone
will have a place in their collection for this substantial specimen at this
price. $400

OKM-824

FIGURED SPECIMEN

Back?

OKM-824 Quartz Brazil.
Ex. Harold L. Dibble collection.
FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz,
page 75 By Harold Dibble. This large cluster at first glance has an
Arkansas look to it... lots of tabular, double terminated, clear to milky
crystals compose this large, 16 x 11 x 8 cm cluster. The damage is minor
with two spots on the front showing crystal breakage and back and a few more.
Overall in nice condition as Harold's book and the images show. High
luster well formed crystals without distracting qualities such as staining,
contacts, etc. $700

OKM-822

Back

OKM-822 Quartz
Brazil. Ex. Harold L. Dibble collection. A large plate measuring 22 x 17 x 5.3 cm. Smoky tips on
parallel growth (actually one crystal or a healed shard off of one huge crystal)
with gemmy interiors to upper half of specimen and more included interior to
lower half of specimen. Very nice displayable example of high luster.
Only the very tiniest of tip dig on last termination. Upper regions are
the quality of fine alpine quarts like that from Switzerland. Really nice
piece for a Brazilian specimen. $550

OKM-809

This seems to be the best (most accurate) color representation

OKM-809 Topaz
Virgem da Lapa, Jequitinhonha Valley, Brazil. Ex. Harold L. Dibble
collection. This is a beautiful rich blue (images appear more washed out
and lighter than the actual piece, also there are no green overtones, it is a
true rich blue) natural topaz of very high quality. The luster is
exceptionally high showing no frosting or abrasion. The accessory species
is lepidolite and is sparse providing an attractive and not distracting
highlight to this gemmy crystal. Internally very clean for this material
with no serious fracturing. Views through to an etched backside that has
some large smooth chipped regions that blend nicely with the etched regions.
One end is chipped and other fully terminated. 13.1 x 6.1 x 5 cm overall.
I've shown plenty of photos so you can determine if the backside damage
distracts you. I do not think it is distracting. I feel it is a high
quality example of rare to find material. $7,500